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Exchange 2010 unable to change receive message size

Hi, I am running a single Exchange 2010 server running on Server 2008 R2. I have the maximum message size set to 10240 (default) in the EMC: Organization Configuration > Hub Transport > Global Settings > Transport Settings > Properties AND in Server Configuration > Hub Transport > Receive Connectors Properties. Message size restrictions are not checked at the user level.

Users can receive a 7MB file, but are blocked from receiving an 8MB file. However, it seems that they are able to send an approximately 10MB file. I set the receive size to 12800 in the locations specified above, but it seems that nothing has changed. I must be missing a setting, but where would that be?

When I send an 8MB message, and then look for the delivery report in OWA tracking, this is the error:

This message won't be sent because it's too large.
55 5.2.3 RESOLVER.RST.SendSizeLimit.Org: message too large for this organization

dmwynne

In my experience when you change the message size settings it can take up to 2 hours to take effect unless you restart the Exchange SA and Exchange IS services.

Simon Butler (Sembee)

Transport is the usual one that has to be changed.
You should have all three at the same size - Send, Receive and Global.
Also be aware that you get encoding growth, so depending on the attachment type a 10mb limit may mean anything from 7mb up to be blocked. Usual rule is 25% above the desired limit to allow for encoding (as end users don't understand the encoding growth).

Simon.

Stolzman

ASKER

I did change the transport receive size limit, and after I changed them, I rebooted the server, and still no luck.

As I said above, I changed both receive limits from 10240 to 12800 and nothing changed: I was able to receive 7MB files but not 8MB. Changing these limits should have changed the size to above 8MB.

Can anyone tell me why changing these parameters has no effect?

ktaczala

check these values in exchange powershell:
get-transportconfig | ft maxsendsize, maxreceivesize
get-receiveconnector | ft name, maxmessagesize
get-sendconnector | ft name, maxmessagesize
get-mailbox |ft Name, Maxsendsize, maxreceivesize

See this link for more information.
http://www.nogeekleftbehind.com/2011/12/09/show-exchange-message-size-limits-in-sbs-20082011/

commands and locations should be the same on your system.

Stolzman

ASKER

Couple of notes on this output:

Receive connectors Client Narada and Mataji are disabled.
User names have been deleted from the mailbox sizes. The one mailbox that has a defined maximum is the Discovery Search mailbox
________________________________________________________________________________________________

[PS] C:\Windows\system32>get-transportconfig | ft maxsendsize, maxreceivesize

MaxSendSize MaxReceiveSize
----------- --------------
10 MB (10,485,760 bytes) 12.5 MB (13,107,200 bytes)

[PS] C:\Windows\system32>get-receiveconnector | ft name, maxmessagesize

Name MaxMessageSize
---- --------------
Client NARADA 10 MB (10,485,760 bytes)
Outside Relay Narada 12.5 MB (13,107,200 bytes)
Default Relay 12.5 MB (13,107,200 bytes)
Mataji 10 MB (10,485,760 bytes)

[PS] C:\Windows\system32>get-sendconnector | ft name, maxmessagesize

Name MaxMessageSize
---- --------------
ACSR-SMTP 10 MB (10,485,760 bytes)

[PS] C:\Windows\system32>get-mailbox |ft Name, Maxsendsize, maxreceivesize

MaxSendSize MaxReceiveSize
----------- --------------
unlimited unlimited
unlimited unlimited
unlimited unlimited
unlimited unlimited
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100 MB (104,857,600 bytes) 100 MB (104,857,600 bytes)
unlimited unlimited
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ktaczala

Please use the message tracking log to check the message size of the message that has been NDRed before, see if it’s really fewer than 12.5 MB. Sometimes, message conversion could increase the message size by 33%

Try increasing values to 25meg for testing.

ktaczala

What mail client are you using?

See this link: http://support.microsoft.com/kb/960775

Stolzman

ASKER

I changed the receive values to 25600 last night and rebooted this morning, and I am still getting the same error message receiving an 8MB file that the email is too large. Here are my parameters.

And to answer the other question, we are using Outlook 2010 as an email client

________________________________________________________________________________

[PS] C:\Windows\system32>get-transportconfig | ft maxsendsize, maxreceivesize

MaxSendSize MaxReceiveSize
----------- --------------
10 MB (10,485,760 bytes) 25 MB (26,214,400 bytes)

[PS] C:\Windows\system32>get-receiveconnector | ft name, maxmessagesize

Name MaxMessageSize
---- --------------
Outside Relay Narada 25 MB (26,214,400 bytes)
Default Relay 25 MB (26,214,400 bytes)

[PS] C:\Windows\system32>get-sendconnector | ft name, maxmessagesize

Name MaxMessageSize
---- --------------
ACSR-SMTP 10 MB (10,485,760 bytes)

ASKER CERTIFIED SOLUTION

Stolzman

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Stolzman

ASKER

I've requested that this question be closed as follows:

Accepted answer: 0 points for Stolzman's comment #a39712877

for the following reason:

No one else had a solution.

ktaczala

I believe I did suggest /answer this issue.
by: ktaczala Posted on 2013-12-04 at 14:03:33ID: 39696577

Please use the message tracking log to check the message size of the message that has been NDRed before, see if it’s really fewer than 12.5 MB. Sometimes, message conversion could increase the message size by 33%

Try increasing values to 25meg for testing.

Stolzman

ASKER

I did increase the message receive size to 25MB for testing, but that did not solve my problem. It wasn't until I changed the send size to 25MB that I was able to receive messages up to 16-18MN.